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MSP430G2231IPW14R

Texas Instruments · Microcontrollers (MCU/MPU/SOC) · TSSOP-14

MSP430G2231IPW14R from Texas Instruments, in a TSSOP-14. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	DVCC	power_in	Digital power supply voltage (1.8 V to 3.6 V during program execution; 2.2 V to 3.6 V during flash memory programming).
2	P1.0/TA0CLK/ACLK/A0	bidirectional	General-purpose digital I/O pin; alternate functions include Timer0_A clock signal input (TA0CLK), auxiliary clock signal output (ACLK), or ADC10 analog input channel A0.
3	P1.1/TA0.0/A1	bidirectional	General-purpose digital I/O pin; alternate functions include Timer0_A capture input CCI0A or compare output Out0, or ADC10 analog input channel A1.
4	P1.2/TA0.1/A2	bidirectional	General-purpose digital I/O pin; alternate functions include Timer0_A capture input CCI1A or compare output Out1, or ADC10 analog input channel A2.
5	P1.3/ADC10CLK/A3/VREF-/VEREF-	bidirectional	General-purpose digital I/O pin; alternate functions include ADC10 conversion clock output, ADC10 analog input channel A3, or ADC10 negative reference voltage (VREF- or VEREF-).
6	P1.4/SMCLK/A4/VREF+/VEREF+/TCK	bidirectional	General-purpose digital I/O pin; alternate functions include subsystem master clock signal output (SMCLK), ADC10 analog input channel A4, ADC10 positive reference voltage (VREF+ or VEREF+), or JTAG test clock input (TCK) during device programming and testing.
7	P1.5/TA0.0/A5/SCLK/TMS	bidirectional	General-purpose digital I/O pin; alternate functions include Timer0_A compare output Out0, ADC10 analog input channel A5, USI serial clock (SCLK) in I2C or SPI mode, or JTAG test mode select input (TMS) during device programming and testing.
8	P1.6/TA0.1/A6/SDO/SCL/TDI/TCLK	bidirectional	General-purpose digital I/O pin; alternate functions include Timer0_A capture input CCI1A or compare output Out1, ADC10 analog input channel A6, USI SPI serial data output (SDO) or I2C clock (SCL), or JTAG test data input (TDI) or test clock input (TCLK) during device programming and testing.
9	P1.7/A7/SDI/SDA/TDO/TDI	bidirectional	General-purpose digital I/O pin; alternate functions include ADC10 analog input channel A7, USI SPI serial data input (SDI) or I2C data (SDA), or JTAG test data output (TDO) or test data input (TDI) during device programming and testing.
10	RST/NMI/SBWTDIO	input	Reset input pin with non-maskable interrupt (NMI) capability; also serves as Spy-Bi-Wire two-wire test data input/output (SBWTDIO) during device programming and testing.
11	TEST/SBWTCK	input	Test mode select input pin for JTAG pins on port 1 (device protection fuse connected); also serves as Spy-Bi-Wire two-wire test clock input (SBWTCK) during device programming and testing.
12	XOUT/P2.7	output	Crystal oscillator output pin; can also function as general-purpose digital I/O pin (P2.7) or Timer0_A compare output, but excessive current will occur if used as input before P2SEL.7 is cleared due to oscillator output driver connection after reset.
13	XIN/P2.6/TA0.1	input	Crystal oscillator input pin (32768 Hz watch crystal or external digital clock source); can also function as general-purpose digital I/O pin (P2.6) or Timer0_A compare output.
14	DVSS	power_in	Digital ground reference (negative power supply reference for core logic).

Key specifications

Parameter	Value
Manufacturer	Texas Instruments
Package	TSSOP-14
Category	Embedded Processors & Controllers
Pins	14

CAD (KiCad official)

Symbol: MSP430G2231IPW14R
Footprint: Package_SO:TSSOP-14_4.4x5mm_P0.65mm
3D model: TSSOP-14 (KiCad packages3D, STEP)
3D model files: msp430g2231ipw14r-etched.step / msp430g2231ipw14r-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); msp430g2231ipw14r.step / msp430g2231ipw14r.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

Datasheet: Texas Instruments datasheet (65 pp, sha256 ef4532c802ec17fb, retrieved 2026-09-27, tier: lcsc)
Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
Extractor: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF